Everything would bee good if the choosen resolution window is right size. If I choose 1080p resolution window size is little smaller than actual 1080p resolution. Can you fix this? Thank you!!!

Here is sample, upper window is right 1080p size and lower one is from Pop-out Youtube plugin
https://ibb.co/VTzHD7H

Core function works reliably, but it there are minor features that could be added to improve user experience.

I've been using an external application extension to open open youtube links in mpv, but that does't let *the algorithm* know I've actually seen the video. I wish it was possible to launch this extension from the context menu right-clicking " youtube.com/watch?v=..." links from youtube subscriptions page or 3rd party sites.

Another minor gripe is that after a video plays in the popout player, clicking on the suggested videos open in a new firefox tab (not the popout player)

It would be perfect if you could just pin it on top of all other windows. Like lock it on top. So you can watch it while you are changing tabs and click all over.